A cluster analysis interpretation of Middle Ordovician biofacies, southern Mackenzie Mountains
Collections of fossil trilobites, ostracods, bryozoans, and conodonts from Chazyan and Blackriveran strata of the southern Mackenzie Mountains are analyzed in an attempt to define biofacies, in terms of areal extent and faunal composition. Q-mode and R-mode cluster analyses, using Jaccard's coe...
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Language: | English |
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Canadian Science Publishing
1980
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Online Access: | http://dx.doi.org/10.1139/e80-145 http://www.nrcresearchpress.com/doi/pdf/10.1139/e80-145 |
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crcansciencepubl:10.1139/e80-145 2023-12-17T10:33:15+01:00 A cluster analysis interpretation of Middle Ordovician biofacies, southern Mackenzie Mountains Hayes, Brad J. R. 1980 http://dx.doi.org/10.1139/e80-145 http://www.nrcresearchpress.com/doi/pdf/10.1139/e80-145 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Earth Sciences volume 17, issue 10, page 1377-1388 ISSN 0008-4077 1480-3313 General Earth and Planetary Sciences journal-article 1980 crcansciencepubl https://doi.org/10.1139/e80-145 2023-11-19T13:39:41Z Collections of fossil trilobites, ostracods, bryozoans, and conodonts from Chazyan and Blackriveran strata of the southern Mackenzie Mountains are analyzed in an attempt to define biofacies, in terms of areal extent and faunal composition. Q-mode and R-mode cluster analyses, using Jaccard's coefficient and the unweighted pair-group method of clustering, are employed to delineate five biofacies. The interpretation of sedimentological features and composition of faunal assemblages shows that one nearshore biofacies, three progressively deeper shelf biofacies, and one continental slope biofacies are represented. A plot of biofacies succession through time in each measured section provides added support for the biofacies interpretations. Article in Journal/Newspaper Mackenzie mountains Canadian Science Publishing (via Crossref) Canadian Journal of Earth Sciences 17 10 1377 1388 |
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Open Polar |
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Canadian Science Publishing (via Crossref) |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
General Earth and Planetary Sciences |
spellingShingle |
General Earth and Planetary Sciences Hayes, Brad J. R. A cluster analysis interpretation of Middle Ordovician biofacies, southern Mackenzie Mountains |
topic_facet |
General Earth and Planetary Sciences |
description |
Collections of fossil trilobites, ostracods, bryozoans, and conodonts from Chazyan and Blackriveran strata of the southern Mackenzie Mountains are analyzed in an attempt to define biofacies, in terms of areal extent and faunal composition. Q-mode and R-mode cluster analyses, using Jaccard's coefficient and the unweighted pair-group method of clustering, are employed to delineate five biofacies. The interpretation of sedimentological features and composition of faunal assemblages shows that one nearshore biofacies, three progressively deeper shelf biofacies, and one continental slope biofacies are represented. A plot of biofacies succession through time in each measured section provides added support for the biofacies interpretations. |
format |
Article in Journal/Newspaper |
author |
Hayes, Brad J. R. |
author_facet |
Hayes, Brad J. R. |
author_sort |
Hayes, Brad J. R. |
title |
A cluster analysis interpretation of Middle Ordovician biofacies, southern Mackenzie Mountains |
title_short |
A cluster analysis interpretation of Middle Ordovician biofacies, southern Mackenzie Mountains |
title_full |
A cluster analysis interpretation of Middle Ordovician biofacies, southern Mackenzie Mountains |
title_fullStr |
A cluster analysis interpretation of Middle Ordovician biofacies, southern Mackenzie Mountains |
title_full_unstemmed |
A cluster analysis interpretation of Middle Ordovician biofacies, southern Mackenzie Mountains |
title_sort |
cluster analysis interpretation of middle ordovician biofacies, southern mackenzie mountains |
publisher |
Canadian Science Publishing |
publishDate |
1980 |
url |
http://dx.doi.org/10.1139/e80-145 http://www.nrcresearchpress.com/doi/pdf/10.1139/e80-145 |
genre |
Mackenzie mountains |
genre_facet |
Mackenzie mountains |
op_source |
Canadian Journal of Earth Sciences volume 17, issue 10, page 1377-1388 ISSN 0008-4077 1480-3313 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/e80-145 |
container_title |
Canadian Journal of Earth Sciences |
container_volume |
17 |
container_issue |
10 |
container_start_page |
1377 |
op_container_end_page |
1388 |
_version_ |
1785587173142036480 |